HazMat Tool — substance information
Fluorine, compressed
HMT 15 June 2026- UN / ID
- UN 1045
- Hazard class
- 2.3
- Packing group
- —
- ERG guide
- ERG 124
- Special provisions
- SP 1, SP N86
- Source
- 49 CFR §172 (15 June 2026)
Fluorine, compressed
Fluorine is a chemical element; it has symbol F and atomic number 9. It is the lightest halogen and exists at standard conditions as pale yellow diatomic gas. Fluorine is extremely reactive as it reacts with all other elements except for the light noble gases. Fluorine in its elemental form is highly toxic. Among the elements, fluorine ranks 24th in cosmic abundance and 13th in crustal abundance Wikipedia
Substance Data
Source: PubChem (HSDB, 01.12.2019)CAS-Number7782-41-4 |
Flash Pointn/a | Boiling Pointn/a |
| Emergency Response Guide No. 124 |
Hazardous Materials Table
Source: 49 CFR §172 (15 June 2026)(3) Hazard Class2.3Poisonous gas |
(4) Identification number |
(5) Packing Group |
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(6) Labels |
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(7) Special Provisions (§172.102)
|
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| 1 | |
|---|---|
| N86 |
(8) Packing Authorizations (§173.***) 
| (8A) Exceptions | None | |
|---|---|---|
| (8B) Non-bulk | 302 | see 49 CFR §173.302 |
| (8C) Bulk | None |
(9) Quantity Limits 
| (9A) Passenger aircraft/rail | Forbidden |
|---|---|
| (9B) Cargo aircraft only | Forbidden |
(10) Vessel stowage 
| (10A) Location | |
|---|---|
| (10B) Other |
Segregation chart for load, transport, and storage
This chart shows whether loading, transport, or storage with other hazard classes is permitted, prohibited, or restricted. Based on 49 CFR §177.848.
Note: In this segregation and separation chart are HazMat of hazard class 2.3 considered depending on their poisonousness by inhalation (Hazard zone A). See special provision 1 and PHMSA Interpretation #09-0252.
| Hazard class | 8![]() | 7![]() | 6.1![]() | 5.2![]() | 5.1![]() | 4.3![]() | 4.2![]() | 4.1![]() | 3![]() | 2.3B![]() | 2.3A![]() | 2.2![]() | 2.1![]() | 1.6![]() | 1.5![]() | 1.4![]() | 1.3![]() | 1.1/1.2![]() |
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3 ![]() | ||||||||||||||||||
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7 ![]() | ||||||||||||||||||
8 ![]() |
| Must not be loaded, transported, or stored together in the same vehicle or facility. | |
| May be loaded, transported, or stored together. | |
| May be loaded, transported, or stored together only with restrictions. |